Question about 1989 kawasaki ZXR 750

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My zxr 750 h1 has no spark . I replaced the coil packs but didn't do any good

Had everything checked and the coils were not sparking even when wired start to the battery . Replaced them but bike still has no sparck

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: wont run...

Any water in the gas? Remove the water trap bowl at the bottom of the petcock, (gas valve). Any water or trash in the bowl? Drain a cup of gas from the tank. Any water or trash in the cup? Dump it, clean it and re-mount it, ( not all bikes have a water trap bowl ).

Get a fresh set of stock NGK spark plugs. Clean or replace the air filter. You seem to be pretty thorough in what you have done, but since plugs and filter weren't mentioned I had to ask.

Assuming you are getting air, gas and spark, and the timing is correct then it should run. Right? Not necessarily. Can the bike breathe? If pressure cant get out of the tailpipe the bike won't run. Mufflers can sometimes collapse internally. This restricts the flow of burned gasses. causing backpressure. If nothing goes out of the cylinder then nothing goes in.

Try removing the exhaust pipes. Now see if it will run. Get back to me because I would like to know what you find.

Posted on Mar 29, 2009

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Benimur
  • 6966 Answers

SOURCE: no spark

Hi and welcome to FixYa,

To my understanding, the problem is 'no spark' yet the engine cranks. Generally, to consider are:

  • pulser coil (least likely);
  • ignition coil (likely);
  • interlocks (likely);
  • CDI (most likely).

Offhand, the CDI would be the main suspect. Since the CDI is sealed, it is not possible to do component level checks. The only way to check if the CDI is good is to check the external connections; if they are good and yet no spark, then the CDI is bad.

How to check the above:
  • to check the pulser coil, measure the low voltage coming from it using an analog/needle type AC voltmeter. While cranking, it should show a flickering low voltage;
  • to check the ignition coil, use a continuity tester. Primary should measure 3 ~ 5 ohms while primary to the high voltage end would measure 15 ~ 18 kilo ohms;
  • the ignition coil has 1 terminal connected to the IGN +12 while the other terminal is connected to the CDI. This should have a pulsating voltage when cranking.
  • all the interlocks could be checked with a continuity tester. Please note that most interlocks has a diode connected in series with their wires.
The interlocks include:
  • clutch switch;
  • side stand switch;
  • neutral light switch.

Good luck and thank you for using FixYa.

Posted on Apr 21, 2009

crapiemael
  • 241 Answers

SOURCE: Kawasaki Ninja 1000RX ´86

Probably a gas delivery problem to the carbs. Check the lines and check for a filter in the line or at the carbs. Something is stopped up and it can't get enough gas to go any rpms.

Posted on May 22, 2009

  • 1129 Answers

SOURCE: No spark

The ignition key switch energizes the CDI then coils

Posted on Jul 14, 2009

  • 1 Answer

SOURCE: 19-95 KLF300 ATV Kawasaki 4x4 no spark put new ignitor unit on.

i ******* hate my kawasaki kdx 125 1992 there is no spark and i dont no wot it needs ive bought a cdi for it an it wernt that and i bought a new coil and it wernt that either could anyone help me please

Posted on Sep 11, 2009

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hello bob , is some ways to check for spark , remove one of the spark wires and attach screw driver at the end and put it close to any gorun or the engine it self and some one can crank it for you while you see the sparck coming out thru the screw driver , if no spark is coming out then you have to check for power to the coil , get a ligth tester and you can check for power to the coil is not hard to do it if you dont have a test ligth they are not expensive 2-3 dollars .

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Hi, Davidalan and the usual suspects are:
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2. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a preliminary reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead-acid batteries.
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Hey,

The 'wire to the coil' that you mentioned could be the problem! (They ain't meant to be taken apart.)

You see, these things are built and operate as a unit, and must be replaced as such.....

Go to a bike wreckers (dismantlers) and source yourself another coil and spark plug lead assembly and refit.

Then, as long as you have a good battery, spark at the plug, and fuel, the old thang should fire up and run OK......

Good luck, mate....you've got a groovy little bike there. :oD

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